Tracing packets - asterisk issues

Bruce Ferrell bferrell at
Tue Jan 25 09:05:48 UTC 2011

On 01/24/2011 11:13 PM, Da Rock wrote:
> I have been trying to get some pointers on my asterisk issues and I've
> only been hearing crickets chirping (Asterisk list and here). I need a
> pointer or two so I can fix this issue, so I'll try another angle.
> How do I trace IP packets across the network (pf firewall included)?
> And would it be possible to read it visually (human readable)?
> Cheers
Use tcpdump to do a capture file.  something like this:

tcpdump -i eth0 -n -s 1500 -w sip.cap

then feed sip.cap to wireshark

filter for SIP and observe the SIP conversation

It's also possible to decode the RTP stream

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